PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 87

• Manufacturer Part Number: PM5381-BI
• Description: ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
The RHPP monitors bits 5, 6 and 7 of the path status byte (G1) to detect path remote defect
indication (RDI-P) and path enhanced remote defect indication (ERDI-P) defects.
RDI-P is declared when bit 5 of the G1 byte is set high for five or ten consecutive frames
(selectable by the PRDI10 bit in the configuration register). RDI-P is removed when bit 5 of the
G1 byte is set low for five or ten consecutive frames. ERDI-P is declared when the same 010,
100, 101, 110 or 111 pattern is detected in bits 5, 6 and 7 of the G1 byte for five or ten
consecutive frames (selectable by the PRDI10 bit in the configuration register). ERDI-P is
removed when the same 000, 001 or 011 pattern is detected in bits 5, 6 and 7 of the G1 byte for
five or ten consecutive frames.
The RHPP extracts and serially outputs all the path overhead (POH) bytes on the time
multiplexed RPOH port. The POH bytes are output in the same order that they are received (J1,
B3, C2, G1, F2, H4, Z3, Z4 and N1). RPOHCLK is the generated output clock used to provide
timing for the RPOH port. RPOHCLK is a nominal 20.736 MHz clock generated by gapping a
25.92 MHz clock. Sampling RPOHFP high with the rising edge of RPOHCLK identifies the
MSB of the first J1 byte.
PDI
Register
Value
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
PDI Range
Register
Value
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
E1-EA
E1-EB
E1-EC
E1-ED
E1-EE
Exp PDI
E5
E1-E5
E6
E1-E6
E7
E1-E7
E8
E1-E8
E9
E1-E9
EA
EB
EC
ED
EE
PDI
Register
Value
10100
10101
10110
10111
11000
11001
11010
11011
11100
S/UNI-2488 Telecom Standard Product Datasheet
PDI Range
Register
Value
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Exp PDI
F4
E1-F4
F5
E1-F5
F6
E1-F6
F7
E1-F7
F8
E1-F8
F9
E1-F9
FA
E1-FA
FB
E1-FB
FC
E1-FC
Released
87